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Film Photography Fades to Black

By

Douglas Gantenbein

Updated March 14, 2006 12:01 a.m. ET

Weston Naef sounds almost misty-eyed when discussing Kodak Tri-X, a black-and-white 35mm film first made in the 1950s and a staple of photojournalism for decades. "It was a wonderful 400-speed film," says Mr. Naef, curator of photography for the J. Paul Getty Museum in Los Angeles, referring to Tri-X's ability to capture an image in low light, known as its "speed." "And then it could be 'pushed' [chemically altered during development] to 1200, or even 2400" -- meaning it could be used in even lower light.